First law or Current Law:
In current carrying coils, the algebraic sum of all currents
meeting at a junction is zero. The incoming currents are
considered as positive and the outgoing currents are
considered as negative.
According to Kirchoff’s law
I1 + I2 - I3 + I4
+ I5 - I6 + I7 = 0
Second Law or Voltage law:
closed circuit, the algebraic sum of emfs acting in that
circuit is equal to the algebraic sum of the products of the
currents and resistances of each part of the circuit.